Ultra-thin body super-steep retrograde well (SSRW) FET devices
    61.
    发明授权
    Ultra-thin body super-steep retrograde well (SSRW) FET devices 有权
    超薄体超陡逆行井(SSRW)FET器件

    公开(公告)号:US07002214B1

    公开(公告)日:2006-02-21

    申请号:US10710736

    申请日:2004-07-30

    IPC分类号: H01L27/12

    摘要: A method of manufacture of a Super Steep Retrograde Well Field Effect Transistor device starts with an SOI layer formed on a substrate, e.g. a buried oxide layer. Thin the SOI layer to form an ultra-thin SOI layer. Form an isolation trench separating the SOI layer into N and P ground plane regions. Dope the N and P ground plane regions formed from the SOI layer with high levels of N-type and P-type dopant. Form semiconductor channel regions above the N and P ground plane regions. Form FET source and drain regions and gate electrode stacks above the channel regions. Optionally form a diffusion retarding layer between the SOI ground plane regions and the channel regions.

    摘要翻译: 超陡逆行井场效应晶体管器件的制造方法从形成在衬底上的SOI层开始。 掩埋氧化层。 使SOI层变薄以形成超薄SOI层。 形成将SOI层分离成N和P接地平面区域的隔离沟槽。 用高水平的N型和P型掺杂剂掺杂由SOI层形成的N和P接地平面区域。 在N和P接地平面区域之上形成半导体沟道区。 在沟道区域上方形成FET源极和漏极区域以及栅极电极堆叠。 可选地,在SOI接地平面区域和沟道区域之间形成扩散延迟层。

    Structure and method for mobility enhanced MOSFETS with unalloyed silicide
    62.
    发明授权
    Structure and method for mobility enhanced MOSFETS with unalloyed silicide 有权
    具有非合金化硅化物的移动性增强MOSFET的结构和方法

    公开(公告)号:US08642434B2

    公开(公告)日:2014-02-04

    申请号:US13397865

    申请日:2012-02-16

    IPC分类号: H01L21/336 H01L21/8238

    摘要: While embedded silicon germanium alloy and silicon carbon alloy provide many useful applications, especially for enhancing the mobility of MOSFETs through stress engineering, formation of alloyed silicide on these surfaces degrades device performance. The present invention provides structures and methods for providing unalloyed silicide on such silicon alloy surfaces placed on semiconductor substrates. This enables the formation of low resistance contacts for both mobility enhanced PFETs with embedded SiGe and mobility enhanced NFETs with embedded Si:C on the same semiconductor substrate. Furthermore, this invention provides methods for thick epitaxial silicon alloy, especially thick epitaxial Si:C alloy, above the level of the gate dielectric to increase the stress on the channel on the transistor devices.

    摘要翻译: 虽然嵌入式硅锗合金和硅碳合金提供了许多有用的应用,特别是为了通过应力工程增强MOSFET的迁移率,在这些表面上形成合金化硅化物降低了器件性能。 本发明提供了在放置在半导体衬底上的这种硅合金表面上提供非合金硅化物的结构和方法。 这使得能够在具有嵌入式SiGe的迁移率增强的PFET和在同一半导体衬底上具有嵌入的Si:C的迁移率增强的NFET形成低电阻触点。 此外,本发明提供了在栅极电介质的电平之上的厚外延硅合金,特别是厚的外延Si:C合金的方法,以增加晶体管器件上的沟道上的应力。

    Semiconductor transistors having high-K gate dielectric layers, metal gate electrode regions, and low fringing capacitances
    63.
    发明授权
    Semiconductor transistors having high-K gate dielectric layers, metal gate electrode regions, and low fringing capacitances 有权
    具有高K栅极电介质层,金属栅电极区域和低边缘电容的半导体晶体管

    公开(公告)号:US08232612B2

    公开(公告)日:2012-07-31

    申请号:US12645981

    申请日:2009-12-23

    IPC分类号: H01L21/00

    摘要: A semiconductor structure. The structure includes (i) a semiconductor substrate which includes a channel region, (ii) first and second source/drain regions on the semiconductor substrate, (iii) a gate dielectric region, and (iv) a gate electrode region, (v) a plurality of interconnect layers on the gate electrode region, and (vi) first and second spaces. The gate dielectric region is disposed between and in direct physical contact with the channel region and the gate electrode region. The gate electrode region is disposed between and in direct physical contact with the gate dielectric region and the interconnect layers. The first and second spaces are in direct physical contact with the gate electrode region. The first space is disposed between the first source/drain region and the gate electrode region. The second space is disposed between the second source/drain region and the gate electrode region.

    摘要翻译: 半导体结构。 该结构包括(i)半导体衬底,其包括沟道区,(ii)半导体衬底上的第一和第二源极/漏极区,(iii)栅极电介质区,和(iv)栅电极区,(v) 栅电极区上的多个互连层,以及(vi)第一和第二空间。 栅极电介质区域设置在沟道区域和栅电极区域之间并与其直接物理接触。 栅电极区域设置在栅极电介质区域和互连层之间并与其直接物理接触。 第一和第二空间与栅电极区域直接物理接触。 第一空间设置在第一源极/漏极区域和栅极电极区域之间。 第二空间设置在第二源极/漏极区域和栅极电极区域之间。

    STRUCTURE AND METHOD FOR MOBILITY ENHANCED MOSFETS WITH UNALLOYED SILICIDE
    64.
    发明申请
    STRUCTURE AND METHOD FOR MOBILITY ENHANCED MOSFETS WITH UNALLOYED SILICIDE 有权
    具有硅酸盐的移动增强MOSFET的结构和方法

    公开(公告)号:US20120146092A1

    公开(公告)日:2012-06-14

    申请号:US13397860

    申请日:2012-02-16

    IPC分类号: H01L27/092

    摘要: While embedded silicon germanium alloy and silicon carbon alloy provide many useful applications, especially for enhancing the mobility of MOSFETs through stress engineering, formation of alloyed silicide on these surfaces degrades device performance. The present invention provides structures and methods for providing unalloyed silicide on such silicon alloy surfaces placed on semiconductor substrates. This enables the formation of low resistance contacts for both mobility enhanced PFETs with embedded SiGe and mobility enhanced NFETs with embedded Si:C on the same semiconductor substrate. Furthermore, this invention provides methods for thick epitaxial silicon alloy, especially thick epitaxial Si:C alloy, above the level of the gate dielectric to increase the stress on the channel on the transistor devices.

    摘要翻译: 虽然嵌入式硅锗合金和硅碳合金提供了许多有用的应用,特别是为了通过应力工程增强MOSFET的迁移率,在这些表面上形成合金化硅化物降低了器件性能。 本发明提供了在放置在半导体衬底上的这种硅合金表面上提供非合金硅化物的结构和方法。 这使得能够在具有嵌入式SiGe的迁移率增强的PFET和在同一半导体衬底上具有嵌入的Si:C的迁移率增强的NFET形成低电阻触点。 此外,本发明提供了在栅极电介质的电平之上的厚外延硅合金,特别是厚的外延Si:C合金的方法,以增加晶体管器件上的沟道上的应力。

    Multiple Vt field-effect transistor devices
    65.
    发明授权
    Multiple Vt field-effect transistor devices 有权
    多Vt场效应晶体管器件

    公开(公告)号:US08110467B2

    公开(公告)日:2012-02-07

    申请号:US12427247

    申请日:2009-04-21

    IPC分类号: H01L21/8236

    CPC分类号: H01L29/7856 H01L29/66795

    摘要: Multiple threshold voltage (Vt) field-effect transistor (FET) devices and techniques for the fabrication thereof are provided. In one aspect, a FET device is provided including a source region; a drain region; at least one channel interconnecting the source and drain regions; and a gate, surrounding at least a portion of the channel, configured to have multiple threshold voltages due to the selective placement of at least one band edge metal throughout the gate.

    摘要翻译: 提供了多阈值电压(Vt)场效应晶体管(FET)器件及其制造技术。 一方面,提供一种FET器件,其包括源极区域; 漏区; 将源极和漏极区互连的至少一个沟道; 以及围绕通道的至少一部分的栅极,其被配置为具有多个阈值电压,这是由于至少一个带边缘金属选择性地放置在整个栅极上。

    STRUCTURE WITH REDUCED FRINGE CAPACITANCE
    67.
    发明申请
    STRUCTURE WITH REDUCED FRINGE CAPACITANCE 有权
    结构与减少的FRINGE电容

    公开(公告)号:US20110049645A1

    公开(公告)日:2011-03-03

    申请号:US12550543

    申请日:2009-08-31

    IPC分类号: H01L29/78 H01L21/28

    摘要: A structure includes a substrate and a gate stack disposed on the substrate. The structure also includes a nitride encapsulation layer disposed on a side wall of the gate stack and which has been exposed to a plasma source. The structure also includes at least one other element contacting the nitride encapsulation layer in a region where the nitride encapsulation layer contacts the side wall of the gate stack.

    摘要翻译: 一种结构包括衬底和设置在衬底上的栅叠层。 该结构还包括设置在栅极堆叠的侧壁上并已经暴露于等离子体源的氮化物封装层。 该结构还包括在氮化物封装层与栅叠层的侧壁接触的区域中与氮化物封装层接触的至少一个其它元件。

    Method to reduce parastic capacitance in a metal high dielectric constant (MHK) transistor
    68.
    发明授权
    Method to reduce parastic capacitance in a metal high dielectric constant (MHK) transistor 有权
    降低金属高介电常数(MHK)晶体管中的寄生电容的方法

    公开(公告)号:US07855135B2

    公开(公告)日:2010-12-21

    申请号:US12539860

    申请日:2009-08-12

    摘要: A method is disclosed to reduce parasitic capacitance in a metal high dielectric constant (MHK) transistor. The method includes forming a MHK gate stack upon a substrate, the MHK gate stack having a bottom layer of high dielectric constant material, a middle layer of metal, and a top layer of one of amorphous silicon or polycrystalline silicon. The method further forms a depleted sidewall layer on sidewalls of the MHK gate stack so as to overlie the middle layer and the top layer, and not the bottom layer. The depleted sidewall layer is one of amorphous silicon or polycrystalline silicon. The method further forms an offset spacer layer over the depleted sidewall layer and over exposed surfaces of the bottom layer.

    摘要翻译: 公开了一种降低金属高介电常数(MHK)晶体管中的寄生电容的方法。 该方法包括在衬底上形成MHK栅极堆叠,MHK栅极堆叠层具有高介电常数材料的底层,中间金属层和非晶硅或多晶硅之一的顶层。 该方法进一步在MHK栅极堆叠的侧壁上形成耗尽的侧壁层,以覆盖中间层和顶层而不是底层。 耗尽的侧壁层是非晶硅或多晶硅之一。 该方法还在耗尽的侧壁层上方和底层的暴露表面之上形成偏移间隔层。